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Samson New Samson Mdr-1064 10 Channel Mixer [2363] Questions & Answers
Getting distorted sound when connecting
You are connecting a NOISY unbalnced line to a balanced input. Buy a DI box and then use an XLR to XLR to the mixer inout and run the MAC into the DI with "ground lifted". You will need to make a resistive mixer between the headphone jack and the DI as well. The headphone jack is STEREO. You COULD try a STEREO 1/8 inch splitter to 1/4 inch left and right cable... you MIGHT get away with that. Right now the left and right amps in the MAC are fighting eachother.
Samson MDR8 blowing internal power supply fuses.
Here is a troubleshooting hint:
Put an incandescent lamp in series with the hot side of the power cord. This acts as a resetable fuse while troubleshooting so you don't blow fuses.
Schematics are hard to come by, but power supplies are easy to trace the circuitry.
Check filter caps and the diodes and THEN look for hot (temp) IC's and transistors.
3/17/2010 3:16:09 PM •
Samson Music
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Answered
on Mar 17, 2010
Peavey cs1000 x
The most likely case is that one of the main output transistors (if which there are many) is shorted. When the protect circuit senses DC on the final output, it will not allow the output relay to come on to protect the speakers from raw DC. With the power removed, you can check between each outputs Emitter and Collector and you will probably find close to zero ohms. From that point you need to unsolder each of the pins of the bad channel until you find the shorted device(s) and replace them.
2/7/2024 9:32:20 AM •
Music
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Answered
on Feb 07, 2024
No or very little sound from Fender passport
Depending on the model, there are four around that date, it could be the insert jacks are tarnished reducing the signal flow between the pre amp stage and digital power amplifier. It could be the power amplifier has failed. It could even be customer error in wiring.
This assumes there is the correct level of signal entering the input sockets of course.
12/31/2023 8:25:12 AM •
Music
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Answered
on Dec 31, 2023
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